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x86/pci: Stop using 32-bit MSR interfaces

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The 32-bit MSR interface rdmsr_safe()is planned to be removed. Use the
related 64-bit variant instead.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: linux-pci@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260629060526.3638272-12-jgross@suse.com
This commit is contained in:
Juergen Gross 2026-06-29 08:05:02 +02:00 committed by Ingo Molnar
parent c36c3d7e5d
commit b67096f9db
1 changed files with 2 additions and 6 deletions
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8
arch/x86/pci/mmconfig-shared.c
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@ -189,7 +189,7 @@ static const char *__init pci_mmcfg_intel_945(void)
static const char *__init pci_mmcfg_amd_fam10h(void)
{
u32 low, high, address;
u32 address;
u64 base, msr;
int i;
unsigned segnbits = 0, busnbits, end_bus;
@ -198,13 +198,9 @@ static const char *__init pci_mmcfg_amd_fam10h(void)
return NULL;
address = MSR_FAM10H_MMIO_CONF_BASE;
if (rdmsr_safe(address, &low, &high))
if (rdmsrq_safe(address, &msr))
return NULL;
msr = high;
msr <<= 32;
msr |= low;
/* ECAM is not enabled */
if (!(msr & FAM10H_MMIO_CONF_ENABLE))
return NULL;